Jan Ruzicka wrote: > Hi Rostya and Florian > > Is there a way to align code? (specially in loops.) > A Profiler is complaining about an unaligned loop. > It gives following suggestion: > "... With gcc, use the -falign-loops=16 compiler flag (broken in gcc > 3.1; gcc 3.3 or later should be used)."
You can use -OaLOOP=16 with fpc. However, at least on my machines (mostly AMDs) I never saw an effect of this except in very synthetic benchmarks compared with the standard value 4. > I am using Shark on OSX 10.3.9 . > > Is there any way to pass parameters to an assembler and/or linker ? Assembler: no Linker: -k > > Jan > > On Aug 12, 2005, at 03:39, Florian Klaempfl wrote: > >> Ростислав Окулов wrote: >> >>> How I can aligh data in FPC like in C? >>> >>> struct __declspec(align(16)) VECTOR4F >>> { >>> float x; >>> float y; >>> float z; >>> float w; >>> }; >> >> >> FPC can align local data only up to 4 byte boundaries. Aligning to 16 >> byte >> boundaries done by the compiler requires too much extra code because >> at every >> procedure entry the stack must be realigned so causing often a slow down. >> >> _______________________________________________ >> fpc-devel maillist - fpc-devel@lists.freepascal.org >> http://lists.freepascal.org/mailman/listinfo/fpc-devel >> > > > _______________________________________________ > fpc-devel maillist - fpc-devel@lists.freepascal.org > http://lists.freepascal.org/mailman/listinfo/fpc-devel _______________________________________________ fpc-devel maillist - fpc-devel@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-devel